Fixed MIPS (little endian) port

Author: AlexPeshkoff

builds/posix/prefix.linux_mipsel

@@ -21,5 +21,8 @@ LD=@CXX@
 
 # -fno-builtin is used because GCC 3.0-3.2.2 had bug with builtins expansion
 # you may remove it if engine is getting compiled with any other GCC version
-PROD_FLAGS=-ggdb -O3 -fno-omit-frame-pointer -DLINUX -pipe -MMD -fPIC
-DEV_FLAGS=-ggdb -DLINUX -DDEBUG_GDS_ALLOC -pipe -MMD -p -fPIC -Wall -Wno-switch -Wno-non-virtual-dtor
+PROD_FLAGS=-ggdb -O3 -fno-omit-frame-pointer -DLINUX -pipe -MMD -fPIC -DMIPSEL
+DEV_FLAGS=-ggdb -DLINUX -DDEBUG_GDS_ALLOC -pipe -MMD -p -fPIC -Werror=delete-incomplete -Wall -Wno-switch -Wno-non-virtual-dtor -DMIPSEL
+
+LINK_LIBS=-latomic
+SO_LINK_LIBS=-latomic